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How are the DC-powered units coming?
This remains our most important need.

In our case (urban WISP) we'll typically need the 12-port version, not for it's 12 ports but because we need four ports that can power Airfiber 24 radios.

Brough wrote:How are the DC-powered units coming?
This remains our most important need.

In our case (urban WISP) we'll typically need the 12-port version, not for it's 12 ports but because we need four ports that can power Airfiber 24 radios.

Dave is trying REAL HARD to have a limited number of units out there by the end of the month. He has been working 7 days a week at it. I think he is getting the latest rev of the board next week and will put it through it's testing to see if the newest version provides more current at lower input voltages and how well this version works in HOT environments. If it passes we will spin off 100 or so pre-release and get them out there quick with production levels a few weeks after that.

You do realize that whereas the WS-12-250A and WS-12-250-AC and WS-12-250-DC do have FOUR ports capable of powering airFIBER radios but keep in mind that each airFIBER is 50W.

So 50W airFIBER radios x 4 = 200 Watts
Board takes up 10-12 watts
This leaves you with 38 watts to spread around and that is driving the power supply at its MAX.

If you drive a power supply over 80% of it's ability all the time in HOT environments be prepared for failures.

We are working on software features to prevent users from driving power supplies at MAX or near MAX all the time.

We are thinking of some strong POP UP warnings and possibly some operations if you override the warning would void the warranty?

We see the need for larger power supplies for our 12 port switches and this is in the works.

Brough wrote:How are the DC-powered units coming?
This remains our most important need.

In our case (urban WISP) we'll typically need the 12-port version, not for it's 12 ports but because we need four ports that can power Airfiber 24 radios.

I know it is more money and power, but you might want to consider using 2 DC switches in this application.

I wasn't planning to power anything other than four AirFiber 24 radios from one 12-port switch and, yes, I was intending to deploy two switches to support more than four radios.

Note that we'll eventually need a separate 1 GbE connection from the router (MT CCR1036-8G-2S+) for each radio, as we can get north of 500 Mbps over an Airfiber 24 link - so four radios means 8 switch ports right off the bat. There are a couple of other minor links, so the switch will be mostly full. but only the four AirFibers will require PoE.

Brough wrote:Note that we'll eventually need a separate 1 GbE connection from the router (MT CCR1036-8G-2S+) for each radio, as we can get north of 500 Mbps over an Airfiber 24 link - so four radios means 8 switch ports right off the bat. There are a couple of other minor links, so the switch will be mostly full. but only the four AirFibers will require PoE.

not sure if you said that right. pushing 500Mbps each, 4 radios is 2Gbps, so you still only need 4 ports and you are using 50% of available throughput...

Pushing north of 500 Mbps per radio and getting a little south of 1 Gbps over 1 GbE means at least three 1 GbE connections. Given possible upgrade of some radios to Siklu or other Gbps radios, it's better to allow for at least 1 GbE incoming per radio.